Q.Draw a neat labelled diagram: Nephrolepis.

Nephrolepis is the chapter's named example of a fern with large, macrophyll leaves. To draw and label it:

Step 1. Underground structures. Draw a horizontal underground stem, the rhizome, from which slender roots (adventitious, since the fern's primary root is replaced early on) extend downward into the soil.

Step 2. Aerial fronds. From the rhizome, draw one or more large, pinnately compound leaves called fronds, each with a central axis bearing many small leaflets that together make up the blade. …

Draw the underground rhizome with its adventitious roots, then the aerial compound fronds, labelling both the front and b …

• Drawing a true tap root instead of the adventitious roots that arise from the rhizome. …